Mercedes-Benz GLE-Class vs Porsche Cayenne
The Mercedes-Benz GLE-Class is the more efficient of the two: it reaches 25 mpg combined versus 24 mpg for the Porsche Cayenne, a 1 mpg advantage and costs about $150 less per year to fuel.
Across 4 measured categories, the Mercedes-Benz GLE-Class leads in 4. Figures are EPA test data, not manufacturer claims.
2016–2026
Mercedes-Benz GLE-Class
Standard Sport Utility Vehicle 4WD · 92 configurations
2015–2026
Porsche Cayenne
Standard Sport Utility Vehicle 4WD · 97 configurations
Head-to-head specifications
| Metric | Mercedes-Benz GLE-Class | Porsche Cayenne |
|---|---|---|
| Best combined MPG | 25 mpg ✓ | 24 mpg |
| Best city MPG | 23 mpg ✓ | 21 mpg |
| Best highway MPG | 29 mpg | 29 mpg |
| Lowest annual fuel costEPA estimate at 15,000 miles per year | $3,150 ✓ | $3,300 |
| Lowest CO2 output | 99 g/mi ✓ | 174 g/mi |
| Engines offered | SIDI; Mild Hybrid, SIDI; PHEV, SIDI, SIDI; FFV | SIDI, SIDI; PHEV, 4.0, 3.0 |
| Transmissions | Automatic 9-spd, Automatic 7-spd | Automatic (S8), Automatic (AM8) |
| Drivetrains | All-Wheel Drive, Rear-Wheel Drive, 4-Wheel Drive | All-Wheel Drive |
| Fuel types | Premium, Premium and Electricity, Premium or E85 | Premium, Premium and Electricity, Premium Gas or Electricity |
| EPA class | Standard Sport Utility Vehicle 4WD | Standard Sport Utility Vehicle 4WD |
| Years covered | 2016–2026 | 2015–2026 |
| Configurations on record | 92 | 97 |
Source: EPA fuel economy records via fueleconomy.gov. Best-case values across all recorded configurations for each model.
GLE-Class vs Cayenne: common questions
Which is better on gas, the Mercedes-Benz GLE-Class or the Porsche Cayenne?
The Mercedes-Benz GLE-Class is the more efficient of the two: it reaches 25 mpg combined versus 24 mpg for the Porsche Cayenne, a 1 mpg advantage and costs about $150 less per year to fuel.
Which costs less to run per year?
By EPA estimates at 15,000 miles a year, the Mercedes-Benz GLE-Class runs about $3,150 a year in fuel at its most efficient configuration, versus about $3,300 for the Porsche Cayenne — a difference of roughly $150 per year.
What engines do the GLE-Class and Cayenne offer?
Mercedes-Benz GLE-Class: SIDI; Mild Hybrid, SIDI; PHEV, SIDI, SIDI; FFV. Porsche Cayenne: SIDI, SIDI; PHEV, 4.0, 3.0.
Are they in the same vehicle class?
Yes — the EPA classifies both the Mercedes-Benz GLE-Class and the Porsche Cayenne as Standard Sport Utility Vehicle 4WD, so they compete directly.
More GLE-Class comparisons
Comparison id: mercedes-benz-gle-class-vs-porsche-cayenne